diff --git a/homeassistant/components/energy/sensor.py b/homeassistant/components/energy/sensor.py
index f8591e5c23f..4002f6c416d 100644
--- a/homeassistant/components/energy/sensor.py
+++ b/homeassistant/components/energy/sensor.py
@@ -29,7 +29,7 @@ from homeassistant.core import (
     split_entity_id,
     valid_entity_id,
 )
-from homeassistant.helpers.entity import EntityCategory
+from homeassistant.helpers import entity_registry as er
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 from homeassistant.helpers.event import async_track_state_change_event
 from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
@@ -210,7 +210,7 @@ class EnergyCostSensor(SensorEntity):
     utility.
     """
 
-    _attr_entity_category = EntityCategory.SYSTEM
+    _attr_entity_registry_visible_default = False
     _wrong_state_class_reported = False
     _wrong_unit_reported = False
 
@@ -416,3 +416,16 @@ class EnergyCostSensor(SensorEntity):
     def native_unit_of_measurement(self) -> str | None:
         """Return the units of measurement."""
         return self.hass.config.currency
+
+    @property
+    def unique_id(self) -> str | None:
+        """Return the unique ID of the sensor."""
+        entity_registry = er.async_get(self.hass)
+        if registry_entry := entity_registry.async_get(
+            self._config[self._adapter.entity_energy_key]
+        ):
+            prefix = registry_entry.id
+        else:
+            prefix = self._config[self._adapter.entity_energy_key]
+
+        return f"{prefix}_{self._adapter.source_type}_{self._adapter.entity_id_suffix}"
diff --git a/tests/components/energy/test_sensor.py b/tests/components/energy/test_sensor.py
index 5193eb186d2..913a2f44d93 100644
--- a/tests/components/energy/test_sensor.py
+++ b/tests/components/energy/test_sensor.py
@@ -22,6 +22,7 @@ from homeassistant.const import (
     STATE_UNKNOWN,
     VOLUME_CUBIC_METERS,
 )
+from homeassistant.helpers import entity_registry as er
 from homeassistant.setup import async_setup_component
 import homeassistant.util.dt as dt_util
 
@@ -187,10 +188,12 @@ async def test_cost_sensor_price_entity_total_increasing(
     assert state.attributes[ATTR_STATE_CLASS] == SensorStateClass.TOTAL
     assert state.attributes[ATTR_UNIT_OF_MEASUREMENT] == "EUR"
 
-    # # Unique ID temp disabled
-    # # entity_registry = er.async_get(hass)
-    # # entry = entity_registry.async_get(cost_sensor_entity_id)
-    # # assert entry.unique_id == "energy_energy_consumption cost"
+    entity_registry = er.async_get(hass)
+    entry = entity_registry.async_get(cost_sensor_entity_id)
+    assert entry
+    postfix = "cost" if flow_type == "flow_from" else "compensation"
+    assert entry.unique_id == f"{usage_sensor_entity_id}_grid_{postfix}"
+    assert entry.hidden_by is er.RegistryEntryHider.INTEGRATION
 
     # Energy use bumped to 10 kWh
     hass.states.async_set(
@@ -392,10 +395,12 @@ async def test_cost_sensor_price_entity_total(
     assert state.attributes[ATTR_STATE_CLASS] == SensorStateClass.TOTAL
     assert state.attributes[ATTR_UNIT_OF_MEASUREMENT] == "EUR"
 
-    # # Unique ID temp disabled
-    # # entity_registry = er.async_get(hass)
-    # # entry = entity_registry.async_get(cost_sensor_entity_id)
-    # # assert entry.unique_id == "energy_energy_consumption cost"
+    entity_registry = er.async_get(hass)
+    entry = entity_registry.async_get(cost_sensor_entity_id)
+    assert entry
+    postfix = "cost" if flow_type == "flow_from" else "compensation"
+    assert entry.unique_id == f"{usage_sensor_entity_id}_grid_{postfix}"
+    assert entry.hidden_by is er.RegistryEntryHider.INTEGRATION
 
     # Energy use bumped to 10 kWh
     hass.states.async_set(
@@ -597,10 +602,12 @@ async def test_cost_sensor_price_entity_total_no_reset(
     assert state.attributes[ATTR_STATE_CLASS] == SensorStateClass.TOTAL
     assert state.attributes[ATTR_UNIT_OF_MEASUREMENT] == "EUR"
 
-    # # Unique ID temp disabled
-    # # entity_registry = er.async_get(hass)
-    # # entry = entity_registry.async_get(cost_sensor_entity_id)
-    # # assert entry.unique_id == "energy_energy_consumption cost"
+    entity_registry = er.async_get(hass)
+    entry = entity_registry.async_get(cost_sensor_entity_id)
+    assert entry
+    postfix = "cost" if flow_type == "flow_from" else "compensation"
+    assert entry.unique_id == f"{usage_sensor_entity_id}_grid_{postfix}"
+    assert entry.hidden_by is er.RegistryEntryHider.INTEGRATION
 
     # Energy use bumped to 10 kWh
     hass.states.async_set(
@@ -1018,3 +1025,50 @@ async def test_cost_sensor_state_class_measurement_no_reset(
 
     state = hass.states.get("sensor.energy_consumption_cost")
     assert state.state == STATE_UNKNOWN
+
+
+async def test_inherit_source_unique_id(hass, hass_storage, setup_integration):
+    """Test sensor inherits unique ID from source."""
+    energy_data = data.EnergyManager.default_preferences()
+    energy_data["energy_sources"].append(
+        {
+            "type": "gas",
+            "stat_energy_from": "sensor.gas_consumption",
+            "entity_energy_from": "sensor.gas_consumption",
+            "stat_cost": None,
+            "entity_energy_price": None,
+            "number_energy_price": 0.5,
+        }
+    )
+
+    hass_storage[data.STORAGE_KEY] = {
+        "version": 1,
+        "data": energy_data,
+    }
+
+    now = dt_util.utcnow()
+    entity_registry = er.async_get(hass)
+    source_entry = entity_registry.async_get_or_create(
+        "sensor", "test", "123456", suggested_object_id="gas_consumption"
+    )
+
+    hass.states.async_set(
+        "sensor.gas_consumption",
+        100,
+        {
+            ATTR_UNIT_OF_MEASUREMENT: VOLUME_CUBIC_METERS,
+            ATTR_STATE_CLASS: SensorStateClass.TOTAL_INCREASING,
+        },
+    )
+
+    with patch("homeassistant.util.dt.utcnow", return_value=now):
+        await setup_integration(hass)
+
+    state = hass.states.get("sensor.gas_consumption_cost")
+    assert state
+    assert state.state == "0.0"
+
+    entry = entity_registry.async_get("sensor.gas_consumption_cost")
+    assert entry
+    assert entry.unique_id == f"{source_entry.id}_gas_cost"
+    assert entry.hidden_by is er.RegistryEntryHider.INTEGRATION